b) Buchan enterprise is investing in a new project. The project will start on 1st January in Year 1 at a cost of 500,000. The net cash flow estimated to be received during each year of the project is given in Table B.31. Assuming the rate of return to be 8%, calculate project's overall return using the discounted payback method. Table B.31 Net cash flow during each year Year ('s) Year 1 20,000 Year 2 50,000 Year 31 100,000 Year 4 200,000 Year 5 300,000 Year 6 30,000 700,000 Net profit 200,000